Faustite and Prase Physical Properties
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.9
  
2.64-2.69
  
Fracture
Conchoidal, ConchoidalAnthony et al, Conchoidal, Brittle, Conchoidal
  
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
  
Cleavage
{???} Indistinct
  
Not Available
  
Mohs Hardness
4.5
  
7
  
Chemical Composition
(Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
  
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Faustite and Prase Chemical Formula
While comparing Faustite and Prase physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Faustite and Prase chemical formula.
- Chemical formula of Faustite- (Zn,Cu)Al 6(PO 4) 4(OH) 8 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)
- Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Faustite and Prase Specific Gravity
Another important criteria for qualitative analysis of gemstones is Faustite and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Faustite and Prase Optical Properties during the identification of gemstone. Specific gravity of Faustite is 2.64-2.69 whereas that of Prase is 2.64-2.69.